<http://schema.org/description>
"An applied magnetic field creates waves in a liquid containing magnetic nanoparticles (not visible here) that separate two types of microbeads based on their size. The same technique can be used to separate blood cells and bacteria."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.technologyreview.com/s/416613/magnetic-liquid-separates-blood-cells/>